If we combine this with the fact that ⃑ □ × ⃑ □ is a vector parallel to ⃑ □, Since s i n c o s c o s s i n s i n □ □ − □ □ = □ . Let us make a matrix with the components in terms of S i n s i n c o s c o s s i n □ = □ □ − □ □. Using the subtraction trigonometric identity s i n s i n c o s c o s s i n ( □ − □ ) = □ □ − □ □ , we find that
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